Steam-boiler.



Na. 653,322. Patented luly l0, I900. C. ALTMANN.

STEAM BOILER.

(Application filed Mar. 7, 1900.)

(No Model.)

FIZZ 2. 4 15.5;

ITLzre 71 to r. /6/l M1M 0 7mm j PATENT FFICEQ CHARLES ALTMANN, OF LYONS, FRANCE.

STEAMBOlLER.

SPECIFICATION forming part of Letters Patent No. 653,372, dated July 10, 1900.

Application filed March '7, 190Q. Serial No. 7,684. (No model.)

To all whmn it may concern.-

Be it known that I, CHARLES ALTMANN, a citizen of France, residing. at Lyons, Rhone, France, have invented a new and useful Steam-Boiler for Instantaneous vaporization, of which the following is a full, clear, and exact description, and for which I have made applications for patents in France, dated July 21, 1899, and in Great Britain, dated August- The boiler which forms the subject of my invention belongs to the class of instant-aneous Vaporizers with narrow channels.

It is the object of my invention to provide a construction having a large heating-s11 rface under a small volume and reducing the number of joints and couplings to a minimum, so as to allow an easy examination of the interior channels.

The annexed drawings show an embodiment of my invention. 7

Figure 1 is a vertical section passing through the axis of the boiler. partly in section. Fig. 3 shows a diaphragm of flexible material.

The boiler is essentially composed of two cylindrical rings of metal a and I), placed one in the other and leaving between them a very narrow space, forming a circular channel 0. A series of narrow recesses d d, made on the inner side of ring ct and on the outer side of ring I), open into this channel and form, with the same, a very great heating-surface, in which the water can circulate and vaporize.

The two rings a and b are joined together by means of two annular plates gf, closing the narrow space 0 at the top and at the bottom.

Fig. 2 is a plan View,

which the feed-water can be warmed before being introduced into the boiler.

The water brought by a pump penetrates into the boiler through a pipe h, placed at the lower part of same, and vaporizes in passing up through the narrow channels. The steam is collected in the upper part at two opposite points of the circumference by a collector is, to which is secured an overheating-pipe plunging into the furnace. This overheating-pipe is formed of a hollow cylinderj, provided with grooves 2' i in the inside wider than those of the vaporizer and in the center of which the steam-outlet pipe I is secured. The steam collected by the collector 7c descends into tubej, gets overheated in the grooves i, and goes through tube Z to the place where it is to be employed. Should the rings a and I), having a certain height, be unequally heated, the inconvenience of their unequal expansion may be avoided by forming the lower joint, Fig. 3, by means of a diaphragm m, of flexible metal, held by two rings or plates ff.

The height and diameter of the rings a and I) depend on the quantity of steam that is to be produced and the kind of heating that is to be employed; but the breadth of channel 0 and of the grooves 01 must never exceed the limits beyond which a spheroidal state might produce itself.

Having fully described my invention, what I claim, and desire to secure by Letters Patent, is I 1. A boiler comprising an inner and outer ring with a narrow space between the same, the ends of said spaces being closed, a series of narrow recesses extending into the body of the rings from said space, and inlet and exhaust pipes com municatin g with said space, substantially as described.

2. A boiler comprising inner and outer rings with a narrow space between, means for closing the space at its end, the means at one end being yieldable, recesses in the rings, and inlet and outlet pipes communicating with said space, substantially as described.

3. A boiler comprising inner and outer In testimony that I claim the foregoing as my invention I have signed my name in pres- 1o ence of two subscribing witnesses.

CHARLES ALTMANN.

Vitnesses:

THOS. N. BROVVNE, MARIN VAGHOR. 

